uba20261 NXP Semiconductors, uba20261 Datasheet - Page 22

• Manufacturer Part Number: uba20261
• Description: 600 V And 350 V Power Ic For Step Dimmable Cfls
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 5.
V
referenced to PGND and SGND, positive currents flow into the UBA20261/2, unless otherwise specified.
[1]
[2]
[3]
[4]
UBA20261_UBA20262
Preliminary data sheet
Symbol
Capacitive mode detection
Input pin SLS
V
Output pin CI
I
Lamp current sensor and dimming control
Input pin CSI
R
V
V
V
V
Output pin CI
I
Input pin MDL (minimum dimming level)
I
V
Temperature protection
T
T
Input pin CSI
V
o(sink)CI
o(CI)
source(MDL)
DD
j(otp)
j(otp)hys
th(capm)SLS
i(CSI)
clamp(CSI)
MDL
otp(CSI)
i(CSI)
dim2(CSI)
dim3(CSI)
= 13 V; V
See
The half-bridge output switching frequency (HBO). The saw-tooth frequency on pin CF is twice as high.
Data sampling of V
Data sampling of V
Table 6 on page 26
Characteristics
FS

Parameter
capacitive mode threshold voltage
on pin SLS
sink output current on pin CI
input resistance on pin CSI
input voltage on pin CSI
clamping voltage on pin CSI
dimming 2 voltage difference on
pin CSI
dimming 3 voltage difference on pin
CSI
output current on pin CI
source current on pin MDL
voltage on pin MDL
overtemperature protection junction
temperature
hysteresis overtemperature
protection junction temperature
overtemperature protection voltage
on pin CSI
V
HBO
ph(SLS)
th(capm)SLS
= 13 V; T
for the default setting.
is performed at the end of the LS power MOSFET conduction period in preheat state.
…continued
is performed at the start of conduction of the LS power MOSFET, in all states with oscillator active.
amb
= 25
All information provided in this document is subject to legal disclaimers.

C; settings according to default setting (see
Rev. 1 — 9 September 2011
Conditions
V
ignition state or boost and burn
state
V
minimum dim level;
R
RMS voltage; clamp active; default
start-up burn state; 100 % on
RMS voltage; offset from V
DIM_2 compared to MDL
RMS voltage; offset from V
DIM_3 compared to MDL
burn state; source and sink;
V
R
RMS voltage; R
R
V
rectification linear for operation
i(SLS)
i(CSI)
i(CSI)
CI
ext(RREF)
ext(RREF)
MDL
= 2 V; source () and sink (+)
= 2 k; T
= 1 V
= 1 V
> V
600 V and 350 V power IC for step dimmable CFLs
th(capm)SLS
= 33 k; R
= 33 k; R
j
ext(RREF)
> T
j(opt)
; V
MDL
MDL
CI
= 33 k;
 T
= 2 V;
= 2 k
= 2 k
i(CSI)
i(CSI)
j(hys)(otp)
at
at
Table 6 on page
[4]
Min
15
26
40
2.5
44
-
330
90
85
26.3
-
145
10
380
1
UBA20261/2
Typ
5
29
-
50
-
50
1
350
100
95
25
50
160
20
400
© NXP B.V. 2011. All rights reserved.
26), all voltages
0
32
60
110
105
23.7 A
-
30
Max
-
+2.5
56
-
370
170
420
22 of 32
Unit
mV
A
M
k
V
mV
V
mV
mV
A
mV
mV
C
C